1·Youth is a blunder; manhood a struggle; old age a ret.
青年时卤莽；中年时奋斗；老年时后悔。
2·Youth is a blunder; manhood a struggle, old age aregret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
3·Youth is a blunder; manhood a struggle, old age a regret.
青年冒失莽撞；成年发奋图强；老年遗憾懊丧。
4·Youth is a blunder; manhood a struggle; old age a regret.
青年鲁莽灭裂，中年奋斗不止；老年后悔无穷。
5·Youth is a blunder; manhood a struggle, old age a regret.
青年鲁莽灭裂，中年奋斗不止，老年遗憾懊丧。
6·Youth is a blunder; manhood a struggle, old age a regret.
青年是错误，成年是奋斗，老年是懊悔。
7·Youth is a blunder; manhood a struggle; old age a regret.
青年鲁莽犯错，中年奋斗不止，老年后悔无穷。